<!--ProdInc[210568412]/Mall:[macys_US]-->A potent retinol serum in a daily-strength micro-dose that helps visibly reduce wrinkles, firm skin, and even texture and tone with minimal discomfort. For all skin types, including sensitive skin. WHAT IT DOES: Kiehl''s potent retinol serum is formulated with Pure Retinol in a daily-strength micro-dose, along with Ceramides and Peptide, to promote gentle skin surface turnover for youthful-looking skin. The precise micro-dose formulation of Kiehl''s anti-aging serum delivers visible results with minimal visible redness, dryness, or peeling. Wrinkles appear visibly reduced, skin appears firmer, pores appear minimized, and skin tone and texture appear more even. Kiehl''s retinol serum is a fast-absorbing lightweight cream. Paraben-free, fragrance-free, mineral-oil, phthalate-free. HOW TO USE: After cleansing, apply Kiehl''s serum with retinol over the entire face, including the under eye and crow''s feet area, carefully avoiding contact with the eye, eye lid area, and lips. Kiehl''s anti-aging serum can be used morning or night. RESEARCH RESULTS: After one bottle of this retinol serum: 100% showed reduced wrinkles.* 90% showed improved firmness.* 94% agree texture is refined.** 91% agree skin tone looks more even.** 88% agree pores look minimized.** *Results based on expert grading in a clinical test for subjects showing improvement after 12 weeks of use **Based on consumer study after 12 weeks of use. USE WITH: Kiehl''s Ultra Facial Cleanser. Kiehl''s Ultra Facial Cream. Kiehl''s Super Fluid UV Defense SPF 50+.